They installed new heater, ducting and AC unit. I mailed a check for what I thought was the final payment, but apparently, my math was off by $125. Instead of just calling me about the $125, they put a lien on my house and I had to fork out another $300 for their non-responsive lawyer to lift the lien. Then after we had their work inspected by an independent home inspector (we were selling the house) he found a leak in their work, and they refused to honor their warranty. This is just a few months after it was installed, they are being paid in full and wont make the repair, so I have to pay someone else $110 to do it. Seriously stay away from these guys. Horrible experience.